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Old October 26th 17, 09:21 PM posted to sci.space.policy
Fred J. McCall[_3_]
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Default Were liquid boosters on Shuttle ever realistic?

JF Mezei wrote:

On 2017-10-24 23:02, Greg (Strider) Moore wrote:

What are the differences? Last I knew the side boosters for the primary
flight are B1023.2 and B1025.2 (i.e 2nd flight for those two boosters)


Musk said that the reason Falcon Heavy is so late is that they had
underestimated the structural changes needed to the rocket because of
different loads (and heavier payload at top).

Whether they retrofitted existing stage 1s as boosters (and the core
stage) or built new ones, reusing only engines, I have no idea.


That's because you're either not paying attention or you have the
memory of a mayfly, Mayfly. It's been mentioned several times that
the side boosters are 'used', which means they're original Falcon 9
equipment that has been retrofitted. The center booster is apparently
new build. Perhaps the modifications required for the center booster
are too extensive to economically use old Falcon 9 stages.


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